Portable electric convection heater



FIG. 1 is a front perspective view taken from above and showing the topand right end of the portable electrical convection heater according tomy new design, the rear view being a mirror image of the front view;

FIG. 2 is a left end elevation view thereof; and

FIG. 3 is a bottom plan view thereof, on a reduced scale.

The ornamental design for a portable electric convection heater, asshown and described.